view not_modified_proxy.t @ 836:a9c4cebcfe69

Tests: adjusted http resolver test with resend. Don't bother with socket error to force resolver resend. Nginx doesn't handle well ECONNREFUSED send() error, which results in "500 Internal Server Error". It may deserve a separate test, though.
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 29 Jan 2016 00:40:05 +0300
parents 3200d5b4ffa8
children e9064d691790
line wrap: on
line source

#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for not modified filter module and it's interaction with proxy.
#
# Notably, requests which are proxied should be skipped (that is, if
# a backend returned 200, we should pass 200 to a client without any
# attempts to handle conditional headers in the request), but responses
# from cache should be handled.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/http proxy cache shmem/)->plan(12);

$t->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    proxy_cache_path %%TESTDIR%%/cache keys_zone=one:1m;

    proxy_set_header If-Modified-Since "";
    proxy_set_header If-Unmodified-Since "";
    proxy_set_header If-None-Match "";

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
        }

        location /etag {
            add_header Last-Modified "";
        }

        location /proxy/ {
            proxy_pass http://127.0.0.1:8080/;
        }

        location /cache/ {
            proxy_pass http://127.0.0.1:8080/;
            proxy_cache one;
            proxy_cache_valid 200 1y;
        }
    }
}

EOF

$t->write_file('t', '');
$t->write_file('etag', '');

$t->run();

###############################################################################

my ($t1, $lm, $etag);

$t1 = http_get('/cache/t');
$t1 =~ /Last-Modified: (.*)/; $lm = $1;
$t1 =~ /ETag: (.*)/; $etag = $1;

like(http_get_ims('/t', $lm), qr/ 304 /, 'if-modified-since');
like(http_get_ims('/proxy/t', $lm), qr/ 200 /, 'ims proxy ignored');
like(http_get_ims('/cache/t', $lm), qr/ 304 /, 'ims from cache');

$t1 = 'Fri, 05 Jul 1985 14:30:52 GMT';

like(http_get_iums('/t', $t1), qr/ 412 /, 'if-unmodified-since');
like(http_get_iums('/proxy/t', $t1), qr/ 200 /, 'iums proxy ignored');
like(http_get_iums('/cache/t', $t1), qr/ 412 /, 'iums from cache');

like(http_get_inm('/t', $etag), qr/ 304 /, 'if-none-match');
like(http_get_inm('/proxy/t', $etag), qr/ 200 /, 'inm proxy ignored');
like(http_get_inm('/cache/t', $etag), qr/ 304 /, 'inm from cache');

# backend response with ETag only, no Last-Modified

$t1 = http_get('/cache/etag');
$t1 =~ /ETag: (.*)/; $etag = $1;

like(http_get_inm('/etag', $etag), qr/ 304 /, 'if-none-match etag only');
like(http_get_inm('/proxy/etag', $etag), qr/ 200 /, 'inm etag proxy ignored');
like(http_get_inm('/cache/etag', $etag), qr/ 304 /, 'inm etag from cache');

###############################################################################

sub http_get_ims {
	my ($url, $ims) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-Modified-Since: $ims

EOF
}

sub http_get_iums {
	my ($url, $ims) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-Unmodified-Since: $ims

EOF
}

sub http_get_inm {
	my ($url, $inm) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
If-None-Match: $inm

EOF
}

###############################################################################